Driveshaft question:

I had a 4-speed 340, 4.56-geared '64 Valiant with a healthy '71 340 back in 1972.... used to race a lot with some M & H 7"-wide, Stocker slicks, on concrete (I-35), and never ever had a problem, but I guess I was just lucky. I was dropping the hammer at 4,500.... felt GOOD!!!!!!!!!!:profilel:

What's the web address for Dr. Diff, please?